2017 WAEC Data Processing OBJ & Essay Questions And Answers/ Expo

DATA PROCESSING LOADING>>>>>> 1a. The operating system is the most important program that runs on a computer. Every general- purpose computer must have an operating system to run other programs and applications. Operating systems perform basic tasks, such as recognizing input from the keyboard, sending output to the display screen, keeping track of files and directories on the disk, and controlling peripheral devices such as disk drives and printers. 2b.Data Dictionary Management -Data Storage Management -Data Transformation and Presentation 2c -1. Overwrite it -2 Demagnetise it (2d) NO 1 - BACKUP There is nothing that can replace backup to prevent data loss and avoid expensive recovery. PRACTISE GOOD WORKING HABITS While working on your computer, if you choose the correct steps, it will help you to prevent major data loss and in the worst case scenario, will help you to increase the chance of ...